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National Stock Number:
5310-00-247-0880
Federal Supply Class:
5310
National Item Identification Number:
002470880
Description:
WASHER,FLAT
Detail:
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.
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Manufacturer Information:
| 1720094 | 56232 | LOCKHEED MARTIN CORPORATION | | NO PRIMARY REF 00-247-0880 | IREF0 | THIS NCAGE IS USED TO INFORM THAT THE DESIGN CONTROL AUTHORITY CANNOT BEESTABLISHED OR THE ITEM OF SUPPLY IS NO LONGER M |
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Techincal Specification:
| MATERIAL | STEEL COMP 302 OVERALL | | SURFACE TREATMENT | OXIDE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.128 INCHES NOMINAL | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.312 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.005 INCHES NOMINAL |
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